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MonitoringWashington AG filing · August 14, 2026

Quantum Health Data Breach: Your Washington Notification Explained

Quantum Health, Inc. reported a data breach in August 2026 to the Washington Attorney General, exposing sensitive personal and health information. This incident could lead to significant risks like medical identity theft and long-term financial fraud for individuals who received a notification letter. Understanding your letter is key to protecting yourself.

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This breach is real, not a scam. Quantum Health, Inc. officially reported it to the Washington Attorney General on August 14, 2026.

Reviewed by David S. Harris, Esq., data breach and class action attorney (Florida Bar No. 0112739). Free consultation: 786-306-7278

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State
Washington
Reported
August 14, 2026

What may have been exposed

  • Full Name
  • Date of Birth
  • Social Security Number
  • Health Insurance ID Number
  • Medical Record Number
  • Diagnosis and Treatment Information
  • Prescription Information
  • Provider and Treatment Dates
  • Mailing Address
  • Phone Number

If you recently received a data breach notification letter from Quantum Health, Inc., it means your personal information may have been compromised. The company, a healthcare navigation and care coordination provider, filed a report with the Washington Attorney General's office on August 14, 2026, concerning a security incident. These letters are formal acknowledgments that your data was involved.

According to the filing, the exposed information includes highly sensitive details such as your Full Name, Date of Birth, Social Security Number, and Mailing Address. Critically, health-related identifiers like your Health Insurance ID Number, Medical Record Number, Diagnosis and Treatment Information, Prescription Information, and Provider and Treatment Dates were also impacted. Your Phone Number was additionally among the compromised data categories.

The exposure of this combination of personal and health data carries substantial risks, particularly concerning medical identity theft. This type of fraud can lead to false claims appearing on your medical records, impacting your future care, and causing incorrect bills. Beyond medical concerns, the compromise of your Social Security Number and Date of Birth can open doors to long-term financial identity theft and account takeovers.

Upon receiving such a notification, it's prudent to review your explanation of benefits (EOB) statements and credit reports carefully for any suspicious activity. Consider placing a fraud alert or security freeze on your credit files to prevent unauthorized accounts from being opened. Prompt action can help mitigate potential harm from the exposed information.

The incident suggests potential vulnerabilities in how sensitive data was protected. For individuals affected by the Quantum Health breach, understanding your legal options is an important next step. We offer a free, no-obligation case review to help you assess your situation and understand if you have grounds for legal action related to this data exposure.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

  • Freeze your credit

    Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.

  • Check for medical identity theft

    Review the Explanation of Benefits statements from your health insurer for services or claims you never received, which can signal misuse of your medical identity.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

Quantum Health, Inc. data breach notice and letter questions

Is the Quantum Health, Inc. data breach letter legit or a scam?
A notice from Quantum Health, Inc. in the mail matches the breach Quantum Health, Inc. reported to the Washington Attorney General on August 14, 2026. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact Quantum Health, Inc. through a phone number or website you find yourself.
Where can I see the official Quantum Health, Inc. breach notice?
Quantum Health, Inc.'s report is published by the Washington Attorney General: https://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA42356.pdf Compare it with the letter you received to confirm the dates and details match.
How many people were affected by the Quantum Health, Inc. data breach, and what was exposed?
The filing does not give a count of affected people and lists the following information as involved: Full Name, Date of Birth, Social Security Number, Health Insurance ID Number, Medical Record Number, Diagnosis and Treatment Information, Prescription Information, Provider and Treatment Dates, Mailing Address, Phone Number. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
Did Quantum Health, Inc. offer free credit monitoring?
Look for an enrollment code in your Quantum Health, Inc. notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Using the free service won't stop you from joining a lawsuit or settlement later.
What should I do after getting the Quantum Health, Inc. data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.
Is there a Quantum Health, Inc. data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against Quantum Health, Inc.. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
Do I need a Quantum Health, Inc. data breach lawyer or attorney?
Talking to a data breach attorney costs nothing here. A lawyer can read your notice, explain your rights under your state's law and tell you whether a claim makes sense.
How much could a Quantum Health, Inc. data breach settlement or claim be worth?
There is no set amount, and no Quantum Health, Inc. settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. The filing lists Full Name, Date of Birth, Social Security Number as involved. Keep receipts and records; they're what damages claims are built on.
Can I sue Quantum Health, Inc. over the data breach?
It depends on what was exposed, the law in Washington and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.

Source: Washington Attorney General filing

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